When the HTTP method is not in http_methods_to_capture, span_ctx becomes nullcontext() which yields None. The code then calls span.set_attribute(attr, value) on this None value at line 167. While wrapped in capture_internal_exceptions(), this causes a silent AttributeError that gets logged rather than crashing. The ASGI integration (lines 311-315) correctly guards this with if isinstance(span, StreamedSpan): before calling set_attribute().

The crashing_app fixture is declared as a parameter in test_transaction_with_error but is never used. The test instead uses the locally defined dogpark function. This creates unnecessary fixture instantiation overhead and could cause confusion for future maintainers.